I would say most of us have been in your shoes. I was. When people would say one day at a time, to me that was like expecting me to hold my breath one day at a time. I could get though the mornings as I was typically not feeling well and on the weekend, I was even drinking in the mornings. But getting through the day was an importable feat- I started by taking it a hour and even a minute at a time. Distractions are good- meetings (check online- they are available on Zoom around the clock). The worst is the early days- remember this- the best decisions you will make in your life are often the hardest.
I am a couple weeks short of 1000 days- that is a miracle. You have the ability to be a miracle too- find a plan- stick to it and most of all- do not drink under any circumstances.